SACRAMENTO (AP) — Gov. Jerry Brown has signed a bill requiring professional sports stadiums and arenas to post security phone numbers for fans to report violence.

AB2464 requires that phone numbers for stadium security be posted in parking lots and the stands after several high-profile incidents of stadium violence.

Brown announced Friday that he signed the bill into law.

Democratic Assemblyman Mike Gatto of Los Angeles, who wrote the legislation, says fans can call 911 to respond to violence, but the stadium’s own security workers can get there more quickly.

His legislation originally proposed creating the nation’s first sports “ban list,” but it was amended during committee hearings. The original bill sought to block unruly fans from attending professional games anywhere in the state for up to five years.